Michael Spanfelner, O.D.
NPI 1669586541 · Optometrist · Oroville, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Spanfelner, O.D. is a Optometrist provider in Oroville, CA (NPI 1669586541).
Provider details
- NPI number
- 1669586541
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 10240T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
968 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 401 | $92 |
| Photography of the Retina92250 | 284 | $38 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 78 | $130 |
| Imaging of Optic Nerve92133 | 64 | $36 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 53 | $113 |
| Exam of Visual Field With Extended Testing92083 | 50 | $66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 166 | 36 |
| Timolol Maleate | 53 | 12 |
| Bimatoprostbrand: Lumigan | 27 | — |
| Dorzolamide Hcl | 18 | — |
| Timolol Maleate/Pfbrand: Timolol Maleate | 12 | — |
| Travoprost | 12 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$112 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2013-01-02
Frequently asked questions
- What is Michael Spanfelner's NPI number?
- Michael Spanfelner's National Provider Identifier (NPI) is 1669586541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Spanfelner's specialty?
- Michael Spanfelner is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Michael Spanfelner located?
- Michael Spanfelner's practice location on file with NPPES is 1550 Myers St, Oroville, CA 95965-4689.
- What is Michael Spanfelner's phone number?
- The practice phone number listed in the NPPES registry for Michael Spanfelner is (530) 533-6604.
- Does Michael Spanfelner accept Medicare?
- Michael Spanfelner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Spanfelner's NPI active?
- Yes — Michael Spanfelner's NPI (1669586541) is active in the NPPES registry as of the last update on 2013-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.